# Scrapy settings for amazon project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     https://docs.scrapy.org/en/latest/topics/settings.html
#     https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
#     https://docs.scrapy.org/en/latest/topics/spider-middleware.html

BOT_NAME = 'amazon'

SPIDER_MODULES = ['amazon.spiders']
NEWSPIDER_MODULE = 'amazon.spiders'


# Crawl responsibly by identifying yourself (and your website) on the user-agent
#USER_AGENT = 'amazon (+http://www.yourdomain.com)'

# Obey robots.txt rules
ROBOTSTXT_OBEY = False

# Configure maximum concurrent requests performed by Scrapy (default: 16)
#CONCURRENT_REQUESTS = 32

# Configure a delay for requests for the same website (default: 0)
# See https://docs.scrapy.org/en/latest/topics/settings.html#download-delay
# See also autothrottle settings and docs
DOWNLOAD_DELAY = 0.5
# The download delay setting will honor only one of:
#CONCURRENT_REQUESTS_PER_DOMAIN = 16
#CONCURRENT_REQUESTS_PER_IP = 16

# Disable cookies (enabled by default)
#COOKIES_ENABLED = False

# Disable Telnet Console (enabled by default)
#TELNETCONSOLE_ENABLED = False

# Override the default request headers:
DEFAULT_REQUEST_HEADERS = {
    'Cookie': 'session-id=459-5069130-8750562; i18n-prefs=CNY; ubid-acbcn=458-3172129-1036728; session-token=AYMlFrnQIkRBhZI9zuTJTIkph9mpr7wTauB5sHvUHmzuTAzDYaXWUVsj1JtLYo27LL4dHYnnHNvWU7GjT81PIWU+FGA+MnFm8gdME8jNt0hdwTcKvuqvTs4JrRHaouYz1IcPKHdP+fpm0s/GOqxdMsq3Pv8bZPaEy4oxgTNbjH/fAuodVO6iLmpCmogETvMI; session-id-time=2082729601l; csm-hit=tb:X8TS00KJ96S2175MKTCE+s-FVF6E4XZ0GWPX0ZKYHX5|1631533792096&t:1631533792096&adb:adblk_no',
    'Referer': 'https://www.amazon.cn/gp/bestsellers/digital-text/144154071/ref=zg_bs_nav_kinc_2_116169071',
}

# Enable or disable spider middlewares
# See https://docs.scrapy.org/en/latest/topics/spider-middleware.html
#SPIDER_MIDDLEWARES = {
#    'amazon.middlewares.AmazonSpiderMiddleware': 543,
#}

# Enable or disable downloader middlewares
# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
#DOWNLOADER_MIDDLEWARES = {
#    'amazon.middlewares.AmazonDownloaderMiddleware': 543,
#}

# Enable or disable extensions
# See https://docs.scrapy.org/en/latest/topics/extensions.html
#EXTENSIONS = {
#    'scrapy.extensions.telnet.TelnetConsole': None,
#}

# Configure item pipelines
# See https://docs.scrapy.org/en/latest/topics/item-pipeline.html
ITEM_PIPELINES = {
    'amazon.pipelines.AmazonPipeline': 300,
}

DATA_CONFIG = {
    'type':'mysql',
    'config':{
        'host':'127.0.0.1',
        'port':3306,
        'user':'root',
        'password':'123456',
        'db':'amazon',
        'charset':'utf8',
    }
}

# Enable and configure the AutoThrottle extension (disabled by default)
# See https://docs.scrapy.org/en/latest/topics/autothrottle.html
#AUTOTHROTTLE_ENABLED = True
# The initial download delay
AUTOTHROTTLE_START_DELAY = 5
#The maximum download delay to be set in case of high latencies
AUTOTHROTTLE_MAX_DELAY = 60
# The average number of requests Scrapy should be sending in parallel to
# each remote server
#AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0
# Enable showing throttling stats for every response received:
#AUTOTHROTTLE_DEBUG = False

# Enable and configure HTTP caching (disabled by default)
# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings
#HTTPCACHE_ENABLED = True
#HTTPCACHE_EXPIRATION_SECS = 0
#HTTPCACHE_DIR = 'httpcache'
#HTTPCACHE_IGNORE_HTTP_CODES = []
#HTTPCACHE_STORAGE = 'scrapy.extensions.httpcache.FilesystemCacheStorage'
